American Motorhome RV PowerMax 55 Amp PM4-55 Series Converter Charger

AMERICAN MOTORHOME RV POWERMAX 55 AMP PM4-55 SERIES CONVERTER CHARGER AMERICAN MOTORHOME RV POWERMAX 55 AMP PM4-55 SERIES CONVERTER CHARGER The PowerMax PM4-55 is a highly efficient deck-mount power converter and intelligent battery charger designed to convert 110V/120V AC shore or generator power into stable, clean 12V DC power. Delivering up to 55 Amps of continuous output, this unit is a popular choice for upgrading or replacing outdated factory lower-section mainboards in RV power centers, and it doubles as a reliable DC bench power supply. KEY FEATURES: * 4-Stage Smart Charging: Utilizes advanced microprocessor control to automatically transition through Bulk, Absorption, Float, and Maintenance modes, maximizing battery performance and overall lifespan. * Universal Battery & Lithium Support: Natively charges multiple battery chemistries, including Lithium (LiFePO4), AGM, Gel, and standard Lead-Acid profiles without risk of overcharging. * Adjustable Fixed Voltage Mode: Allows you to switch from the smart charging profile to a fixed-output DC power supply, manually adjustable from 13.0 Vdc up to 16.5 Vdc—ideal for car audio tuning, testing benches, or specific hardware demands. * Clean & Low-Ripple Power: Provides exceptionally smooth DC current to cleanly run onboard components like fans, water pumps, slide-outs, and sensitive electronics without battery reliance. * Comprehensive System Fail-Safes: Features robust integrated protection against Reverse Polarity, Short Circuits, Overload conditions, and Thermal overheating. * Proportional Cooling Fan: Designed with a temperature-controlled cooling fan that operates dynamically based on demand, ensuring whisper-quiet performance during low-load intervals.